Journal-box.



l I IllIllllllllllllllllllllllIlllflllIllllllllllllllllllllllfiy G. A.WOODMAN.

JOURNAL BOX. APPLICATION FILED mugs/190a.

Patented May 27, 1913-.

G. A. WOODMAN.

JOURNAL BOX.

APPLICATION FILED JUNE 25, 1908.

1,062,680. Patented May 27, 1913.

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l lmnm T umm unuFnWTWm mmmllllll lllllllm antral) STATES PATENT OFFICE.

GEORGE ALVERADO WOODMAN, OF CHICAGO, ILLINOIS, ASSIGNOR T0 KIRBY EQUIP-MENT COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

JOURNAL-BOX.

To all whom, it may concern:

Be it known that I, GEORGE A. IVOODMAN, a. citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented new and useful Improvements in J ournal-Boxes, of which thefollowing is a specification.

Heretofore journal boxes have been made principally of ordinary castiron and lately, to some extent, of malleable cast iron but the latterhave constituted only a small proportion of all the journal boxes madeand used. The ordinary cast iron journal boxes can be manufactured atlow cost but are jectionable because they fracture easily and in thisrespect are expensive to maintain and unsafe in service. The malleablecast iron journal boxes are more expensive than the ordinary cast ironboxes and are somewhat stronger, but they are also objectionable forlack of strength and cost of maintenance.

Attempts have been made to make journal boxes of cast steel because ofthe strength of this material, but such attempts have not provencommercially successful on account of the great loss of castings inmanufacture and the consequent expense involved. These losses are duelargely to shrinkage cracks in the castings and I have found that suchcracks are occasioned to a very large extent by the thickness and lackof uniformity and evenness of the section.

It is my object to provide a journal box which can be successfully madecommercially of cast steel and with this end in view the inventionconsists in making a box of novel form and construction having an eventhickness of metal to reduce shrinkage in casting.

In the accompanying drawings I have illustrated one embodiment of theinvention in which- Figure 1 is a top plan view. Fig. 2 is a sideelevation. Fig. 3 is a vertical sectional View on the line 3-3 ofFig. 1. Fig. 1 is a bottom plan view. Fig. 5 is a front elevation. Figs.6 and 7 are sectional views on the lines 66 and 77 of Fig. 1.

My present invention does not relate to the lid and as the box may beadapted for lids of a variety of different kinds I will not refer to theconstruction of the lid in this specification.

The body 10 of the box is provided at its rear end with a dust guardopening 11 formed by the outer wall 11 and the inner Specification ofLetters Patent.

Application filed June 25, 1908.

Patented May 27, 1913. Serial No. 440,205.

wall 11". On the top of the box I provide an arch-bar seat 12 which, asshown in Fig. 1, comprises a rectangular rib l2 projecting upward fromthe top 10 of the box. To reduce the section where the rib joins the topof the box transversely thereof I provide a recess 13 in the top of thebox beneath the rib (Fig. 3). The sides 10 of the box are providedexteriorly with recesses 1 1 and top and bottom lugs 14:, 1 1",respectively, to receive the fastening bolts which are seated in saidrecesses and pass through openings 15 in said lugs. The sides of the boxare indented or pressed inwardly to form stop lugs 16 interiorly for thejournal bearing (not shown). The shape of the box is, generallyspeaking, rectangular but the bottom of the box is preferably rounded,6, 7 except at the transverse section through the arch-bar seat. That isto say, the bot-tom of the box is rectangular in section transverselyboth interiorly and exteriorly beneath the arch bar seat 12 but ispreferably rounded transversely both int-eriorly and exteriorly at 17between the arch-bar seat section and the inside dust guard wall, andalso rounded transversely both interiorly and exteriorly at 18 betweenthe arch-bar seat section and the lifting jack seat 19. I-Ieretofore thelower lugs for the fastening bolts have been formed as projections ofconsiderable weight and structure on the sides of the body of the boxand in making the box in this way a bottom core is necessary andconsiderable loss has been occasioned by reason of bad castings. I avoidthis by shaping the body of the box itself with straight sides toaccommodate the fastening bolts which are seated in the recesses 14.

In the construction of the box the walls thereof are made comparativelythin and of substantially even and uniform thickness throughout. Thebottom of the box is preferably made somewhat thicker than the sidewalls, and tapers gradually at the rounded parts to the side walls(Figs. 67 This facilitates the flow of metal in casting which enters themold at the rear end thereof. On the bottom of the box I provide theseat 19 to receive a jack for lifting the box to replace the journal.

The body of the box is made of substantially uniform thicknessthroughout and T joints, which are especially objectionable because theyproduce excessive shrinkage and cracks, are wholly eliminated. Thisuniform thickness enables the metal to run freely in the castingoperation and avoids choking which frequently happens where the sectionvaries. By eliminating the guides which have been heretofore provided onthe sides of the box to receive the fastening bolts, and which have beena great source of trouble in casting and occasion the loss of manycastings, I not only simplify the construction of the box but alsomaterially reduce the cost of manufacture both as regards weight andlosses in casting.

The cast steel boxes which have been made heretofore, but to a verylimited extent, have not only differed from my invention in form andconstruction but they have also been constructed with very thicksections and consequently the weight of the box has been greatlyincreased. My invention provides for making a box of cast steel withc0mparatively thin sections thus materially reducing the weight which,of course, correspondingly lessens the cost of manufacture, and withoutaffecting the strength of the box. In fact I have found by practicaldemonstration that a cast steel box made in accordance with my inventionis fully twice as strong as a malleable cast iron box and three times asstrong as an ordinary cast iron box and at the same time is much less inweight than the malleable cast iron box and considerably less in weightthan the ordinary cast iron box.

By making the box in the form and construction herein disclosed only onecore is required and I avoid the necessity of using a bottom core andchill blocks which latter have been frequently and of necessity usedheretofore in an endeavor to prevent shrinkage and resulting cracks in'the casting. And in the construction of the box I prefer to providefillets at all joints and to round all corners for this is founddesirable in the manufacture of a caststeel journal box. A

hat I claim and desire to secure by Letters Patent is:

1. As a new article of manufacture, a cast steel journal box having anintegral archbar seat and outside and inside dust guard walls, said boxbeing substantially rectangular in section through the arch-bar seat andhaving its bottom rounded transversely both interiorly and eXterio-rlybetween the arch-bar seat and the inside dust guard wall.

2. As a new article of manufacture, a cast steel journal boxsubstantially rectangular in section through the arch-bar seat andhaving its bottom rounded transversely both interiorly and exteriorlyadjacent to said rectangular section and on both sides thereof.

GEORGE ALVERADO WOODMAN.

Vvitnesses PAUL SoHMEoHEL, M. A. KIDDIE.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

